diff --git a/sys/dev/flash/cqspi.c b/sys/dev/flash/cqspi.c
index ede6369aa62..7cb3d50d398 100644
--- a/sys/dev/flash/cqspi.c
+++ b/sys/dev/flash/cqspi.c
@@ -50,6 +50,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/malloc.h>
 #include <sys/module.h>
 #include <sys/mutex.h>
+#include <sys/rman.h>
 #include <geom/geom_disk.h>
 
 #include <machine/bus.h>